208076980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{1051}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 461280960

約数和(自身を除く): 253203980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 521, 1042, 1051, 2084, 2102, 2605, 4204, 5210, 5255, 9899, 10420, 10510, 19798, 19969, 21020, 39596, 39938, 49495, 79876, 98990, 99845, 197980, 199690, 399380, 547571, 1095142, 2190284, 2737855, 5475710, 10403849, 10951420, 20807698, 41615396, 52019245, 104038490, 208076980]

約数ペア:

[(1, 208076980), (2, 104038490), (4, 52019245), (5, 41615396), (10, 20807698), (19, 10951420), (20, 10403849), (38, 5475710), (76, 2737855), (95, 2190284), (190, 1095142), (380, 547571), (521, 399380), (1042, 199690), (1051, 197980), (2084, 99845), (2102, 98990), (2605, 79876), (4204, 49495), (5210, 39938), (5255, 39596), (9899, 21020), (10420, 19969), (10510, 19798)]